Fig. 5
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Example of background correction with Earth’s presence in the field of view and without bright sources. Top left: raw shadowgram in counts (20 s exposure). Top right: earth presence map. Middle left: fitted model of the shadowgram (2D polynomial fit). Middle right: wavelet model of the shadowgram (D3). Bottom left: shadowgram corrected with the fit method. Bottom right: shadowgram corrected with the wavelet method.
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